[Elecraft] K3: cw/vox/PTT ver 2.02 - bug?

John Unger w4au at verizon.net
Mon Jun 9 13:01:18 EDT 2008


Hi Don -

I believe you are wrong here in stating that the delay of RF output after 
keying is fixed in the K3. Here is an excerpt of the notes from Wayne for 
the MCU 1.87, DSP 1.69 firmware update:

...
   "* VARIABLE AMP KEYING DELAY: Added CONFIG:TX DLY menu entry, which sets 
the time from KEY OUT jack (active low) to first RF in 1-ms steps, from 8 
to 20 ms.     To minimize loss of QSK speed, use the shortest delay that 
works with your amp. Most will work with the default (minimum) setting of 8 
ms."
...

73 - John, W4AU


At 09:31 PM 6/8/2008, Don Wilhelm wrote:



... stuff deleted ...

>The delay of RF output after keydown is currently fixed in the K3, but 
>there is consideration being given to allow it to be user controlled in 
>the future.  The adjustment range may be limited, so if you have 
>transverters and preamplifiers that must have a longer delay to the onset 
>of RF, the TX INH input would be required.
>
>73,
>Don W3FPR



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